/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cn.icanci.snow.spring.util;

import java.util.Collection;
import java.util.Map;

/**
 * 验证工具
 * 
 * @author icanci
 * @date Created in 2021/05/19 16:52
 * @version 1.0
 */
public class ValidationUtil {
    /**
     * 对集合判断空
     * @param obj 需要判断的集合
     * @return 是否为空
     */
    public static boolean isEmpty(Collection<?> obj) {
        return null == obj || obj.isEmpty();
    }

    /**
     * 对字符串判断空
     * @param obj 需要判断的字符串
     * @return 是否为空
     */
    public static boolean isEmpty(String obj) {
        return null == obj || "".equals(obj);
    }

    /**
     * 对数组判断空
     * @param obj 需要判断的数组
     * @return 是否为空
     */
    public static boolean isEmpty(Object[] obj) {
        return null == obj || obj.length == 0;
    }

    /**
     * 对Map判断空
     * @param obj 需要判断的Map
     * @return 是否为空
     */
    public static boolean isEmpty(Map<?, ?> obj) {
        return null == obj || obj.isEmpty();
    }
}
